<meta http-equiv="refresh" content="1; url=/nojavascript/">
Skip Navigation

Roles in an Ecosystem

Practice Roles in an Ecosystem
Practice Now
Symbiosis: A Surprising Tale of Species Cooperation
Community Contributed
Goes into more depth about symbiosis and how it applies to a real ecosystem.


Please wait...
Please wait...

Help us improve the site! Which of the following best describes your visit today?

I'm a student and I found this site on my own.
I'm a student and my teacher told me to come to this site.
I'm a teacher looking for materials to use in class.
I'm preparing for teacher certification exam, e.g. Praxis II.

Thanks for answering this poll. Your feedback will help us continue to improve the site!

Original text